Answer:
below
Step-by-step explanation:
n = 30
cos 2*30 = cos 60 = 1/2
sin 30 = 1/2
2m = 30
m=15
Answer:
B. cosecant
Step-by-step explanation:
Just took the test and got it wrong but this is the correct answer
Answer:
The required equation is 
Step-by-step explanation:
Consider the provided equation.

Solve the equation for b.
Square both the sides.

Subtract a² from both the sides.

Square root both the sides.

Hence the required equation is 
Answer:
I think it is C. But i'm probably wrong. I had the same thing but i forget it.
Step-by-step explanation:
Hope it helps.